The answer lies in regulating the operon. As trp levels increase, trp binds to trpR, causing a conformational change that allows binding to the operator and repression of gene expression.

The operon is regulated by Lac repressor, the product of the lacI gene, which is transcribed from its own promoter (PI). The repressor inhibits transcription by binding to the lac operator (O).

Here Prof. Dixit explains game theory and its impact on situations we encounter every day. "If Nash got a dollar for every time someone wrote or said 'Nash equilibrium,'" Dixit has said ...

Theory of mind is typically defined as the ability to understand the thoughts, beliefs, desires, and emotions of other people. This understanding allows individuals to predict how others will feel ...

Here we explore what the theory of general relativity is and how it affects space-time. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

String theory is perhaps the most high-profile candidate for what physicists call a theory of everything – a single mathematical framework capable of describing the entirety of the known universe.

Check if you have access via personal or institutional login Quantum field theory (QFT) is one of the great achievements of physics, of profound interest to mathematicians. Most pedagogical texts on ...

Her expertise is in personal finance and investing, and real estate. Expectations theory attempts to predict what short-term interest rates will be in the future based on current long-term ...

Social comparison theory is the idea that individuals determine their own social and personal worth based on how they stack up against others. The theory was developed in 1954 by psychologist Leon ...

Learn about our editorial policies According to the quantity theory of money, the general price level of goods and services is proportional to the money supply in an economy. If the amount of ...

What Is Critical Race Theory? One hundred years ago, on May 31 and June 1 of 1921, white rioters ransacked and set ablaze a wealthy Black neighborhood in northern Tulsa, Oklahoma – a place known ...

British automaker Lotus has revealed the Theory 1, a tech-heavy concept car with saluting doors and "soft robotic" seats. Unlike some other recent concept cars that have sought to pre-empt how ...